title: Gibberellin production and phosphate solubilization by newly isolated strain of Acinetobacter calcoaceticus and its effect on plant growth.
abstract: Plant growth-promoting rhizobacteria with gibberellins (GA)-producing potential were isolated from soil and screened for plant growth promotion. A new strain, Acinetobacter calcoaceticus SE370, produced extracellular GA and also had phosphate solubilising potential. It produced 10 different gibberellins, including the bioactive GA(1), GA(3) and GA(4) which were at, respectively, 0.45, 6.2 and 2.8 ng/100 ml. The isolate solubilised tricalcium phosphate and lowered pH of the medium during the process. Culture filtrates of the organism after growth on broth promoted growth of cucumber, Chinese cabbage and crown daisy.
authors.affiliation: Division of Plant Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, South Korea.
authors.forename: Sang-Mo
authors.initials: SM
authors.lastname: Kang
authors.forename: Gil-Jae
authors.initials: GJ
authors.lastname: Joo
authors.forename: Muhammad
authors.initials: M
authors.lastname: Hamayun
authors.forename: Chae-In
authors.initials: CI
authors.lastname: Na
authors.forename: Dong-Hyun
authors.initials: DH
authors.lastname: Shin
authors.forename: Hak Youn
authors.initials: HY
authors.lastname: Kim
authors.forename: Jin-Kyu
authors.initials: JK
authors.lastname: Hong
authors.forename: In-Jung
authors.initials: IJ
authors.lastname: Lee
mesh_terms: D016954:Acinetobacter calcoaceticus / Q000145:classification* / Q000502:physiology*; D018553:Cucumis sativus / Q000254:growth & development* / Q000382:microbiology*; D005875:Gibberellins / Q000096:biosynthesis*; D010710:Phosphates / Q000378:metabolism*; D012988:Soil Microbiology; D012995:Solubility; D013045:Species Specificity
chemical_list: D005875:Gibberellins; D010710:Phosphates